Tetraphobia

Tetraphobia (from Greek τετράς—tetras, "four" and φόβος—phobos, "fear") is the practice of avoiding instances of the number 4. It is a superstition most common in East Asian nations.

Tetraphobia

Tetraphobia (from Greek τετράς—tetras, "four" and φόβος—phobos, "fear") is the practice of avoiding instances of the number 4. It is a superstition most common in East Asian nations.